Claim · model-written summary
Current Sydney region distributions appear to reflect historical patterns more than recent fragmentation.
- Outcome
- current distributione0
- Qualifier
- appears to reflect historical patterns rather than recent effects of fragmentatione0
- Setting
- Sydney regione0
PersooniaNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The current distribution of Persoonia species in the Sydney region appears to reflect historical patterns rather than recent effects of fragmentation.”
Title
Paul D. Rymer Research Online (University of Wollongong) 2006
Other claims from this paper (19)
- Association Rarity was unrelated to taxonomic status or geographical distribution.
- Association Rainfall, temperature and elevation differed significantly between common and rare species.
- Association Resprouting ability and plant size differed significantly between common and rare species.
- Association Rare species tended to have fewer plants per patch than common species.
- Observation Genetic variation was low in all four species.
- Association Rare species had significantly greater within-population genetic variation than common species.
- Observation Genetic structure was significant among species at 21percent.
- Observation Genetic structure was significant among populations at 15percentage.
- Association Interpopulation variation did not vary consistently with rarity across the two species pairs.
- Association Rare species showed greater differentiation between populations than common species after accounting for geographic separation.
- Association Common species had fruit maturation above 35%, versus below 20% in rare species.
- Observation All studied species were obligate outcrossers.
- Association Only rare species were pollen-limited, with lower open-pollinated fruit set than hand-crossed fruit set.
- Observation Native bees and introduced honeybees visited flowers of all species.
- Association Native bees visited fewer flowers per plant and moved farther between plants than honeybees.
- Association Native bees visited common species more often than rare species.
- Association Macropod seed removal exceeded 50% in common species and was below 25% in rare congeners.
- Association Rodent seed predation had no overall rarity effect, but rare P. mollis maxima seeds were eaten more than seeds of the other three species.
- Recommendation Authors recommend prioritizing conservation of all rare obligate-seeding Persoonia populations in the wild.